Gas-generator



(No Model.) 2 Sheet s-Sheet 1.

. H. PRATT 82; J. J. RYAN.

GAS GENERATOR.

Patented A 59- N. PETERS. Pholo'lilhcgnpber, WSNIIMII. 1C.

(No Model.) 2 sheets-sheet .2.

. HIPRATT & J. J. RYAN.

. GAS GENERATOR. v No. 361,078. Pate.ntedApr.12,1887..

I & A\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\Y UNITED STATES PATENTOFFICE.

HENRY PRATT AND JOHN J. RYAN, OF CHICAGO, ILLINOIS.

GAS-GENERATO R.

SPECIFICATION forming part of Letters Patent N0.'361,078, dated April12, 1887.

Application filed November 19, I884. Serial No. 148,279. (No model.)

certain new and useful Improvements in Gas- Generators, of which thefollowing is a specification, reference being had therein to theaccompanying drawings.

Our invention relates to improvements in furnaces forgenerating-hydrocarbon gases for 1l1um1nat1ng purposes, and moreparticularly to improvements on the furnaces shown in Letters Patent No.297,162, granted to us on the 22d day of April, 1884.

The object of the invention is to provide improved means for feedingsuitable volatile hydrocarbons to the gases generated in the furnace,-asdescribed in the Letters Patent named; and to that end it consists of aseries I of arches situated at different points above the fire-bed, andeach provided with a series of radial ports communicating with theinterior of the furnace through a number of small openings. Communication is also formed between the radial ports of each arch and acommon supply-pipe, each arch being provided with a central opening,into which the radial ports open, and which is connected with thesupplypipe by a main channel. The supply-pipe is provided with a seriesof stop or regulating valves, through the medium of which it isdetermined which arch is to be used, as will be described.

In the accompanying drawings, Figure 1 is a Vertical section of thefurnace. Fig. 2 is an elevation thereof, and Figs. 3 and 4 a sectionalplan and a cross-section of one of the arches.

Like letters refer to like parts in each view.

The manner of generating the heating-gas is the same as described in theLetters Patent referred to, there being two or more furnaces,

A A, suitably connected by a pipe, B, or one' furnace subdivided. Air isadmitted to bring the-fire to a suflicient degree of heat to decomposethe steam to be applied thereto, such steam passing downthrough onefire-bed,

thence through the connecting-pipe, and up through the second fire-bed,the whole being thus converted into carbonic oxide and hydrogen. Toconvert the gas thus formed into an illuminating-gas it is necessary tomix formed in center E, with which a series of radiating ports, 6,communicate, there being one of such portsfor each arm D. Communicationis formed between ports b and the interior of the furnace through themedium of small openings 0, which pass downwardly through arms D. A mainchannel, (I, communicates with the center E, and thence with the portsI) and the interior of the furnace, there being one of such channels foreach arch. At the outer end each channel d communicates with asupply-pipe, F, such pipe being provided with valves G, one for eacharch.

It will be understood that owing to the relative position of the severalarches with respect to the fire-bed such arches w1ll be heated todifferent degrees, as also will the oils or resultant vapors passingtherethrongh. The object we have in view in the use'of more than onearch is to avoid all danger of overheating the oil or vapors introducedtherethrough. It has frequently been found in practice that where anarch has been properly located to prevent any lack of heat it is, undercertain circumstances, overheated, owing to the height of the burningfuel and like causes, and we therefore provide the additional arches foruse in such cases. It will be understood that any particular arch may beused, while the others are shut off by the proper manipulation of thevalves G. In this manner, whenever the lower arch is for any reason toohot, the one next above may be used.

We are aware of the existence of Letters Patent No. 263,984, issued toone Springer, and Letters Patent No. 274,637, issued to one Moses, anddisclaim any construction shown therein.

What we claim is 1. The combination, in a cupola generator for themanufacture of illuminating-gas, and

5 hydrocarbon-supply pipe.

2. The combination, in a cupola generator for the manufacture ofilluminating-gas, and with the body thereof, of a hollow perforateddiaphragm or arch, said diaphragm having [0 openings therein todischarge into the combustion-chamber and being provided with aliquid-hydrocarbon-supply pipe, as described.

3. In a gas-generating furnace, the combi-' nation, with a cupola, itsgrate, and a volatile- I 5 hydrocarbon-suppl y pipe, of a series ofhollow arches placed one above the other and each communicating with theinterior of the furnace and with the supply-pipe, as described andshown.

4. In a gas-generating furnace, the combination, with a. cupola, itsgrate, and a supplypipe, of a series of spider arches, situated asdescribed, each communicating with the supply-pipe and each providedwith radial ports and openings for forming communication with theinterior of the furnace, as set forth.

5. In a gasgenerating furnace, the combination, with a cupola, itsgrate, and arches O G G, 820., provided with ports I), openings c,andcentral space a, and channel d, of supply-pipc F and valves G, as setforth.

In testimony whereof we affix our signatures in presence of twowitnesses. V

HENRY PRATT. JOHN J. RYAN.

YVitnesses:

M. J. CLAGETT, FRANK S. BLANCIIARD.

